An item for the determination of the electrical wavelength or frequency being generated by an electronic equipment such as a radio transmitter. It may be placed in the radiation field of the equipment, thereby operating on the "absorption" principle, or connected into a transmission line or waveguide run between the equipment and a component such as an antenna, thereby operating on the tuned cavity resonance principle. It includes inscriptions from which the wavelength or frequency can be determined directly, or by reference to an associated calibration curve or tabulation. The wavemeter operates in accordance with its design function only when the equipment under measurement is operating. For items, such as grid dip meters, that determine the same information when the equipment under measurement is not operating, see frequency meter.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 2925-01-211-3294
NSN 5998-00-418-4969
NSN 5998-01-051-8495
NSN 5950-00-919-3297
NSN 4140-01-126-5989
NSN 6220-00-323-0800
NSN 6130-01-127-9610
NSN 5975-01-432-2149
NSN 5855-01-383-6860
NSN 5985-01-237-2570
NSN 4140-01-384-7778
NSN 5996-00-890-5254